This talent allows pets the possibility of retrieving "bonus Halloween items" when used to open Wooden Chests. I've attempted to post about the results I have achieved using this talent three times before now, only to have those posts not approved or posted, perhaps because I expressed disappointment in fairly strong terms.
I can confirm that the Talent does now work, however, players should be advised that their results will vary wildly. Bonus items can be treasure cards, pet snacks, reagents as well as housing items. Unfortunately, I did not receive any bona fide Halloween Items.
Perhaps this Talent should be reviewed by the design team to be sure that it is working as intended?
